The U.S. gay-rights movement has achieved many victories in recent years — on marriage, military service and other fronts. Yet one vestige of an earlier, more wary era remains firmly in place: the 30-year-old nationwide ban on blood donations by gay and bisexual men.

Federal regulators are pressing the Supreme Court to stop big pharmaceutical corporations from paying generic drug competitors to delay releasing their cheaper versions of brand-name drugs. They argue these deals deny American consumers, usually for years, steep price declines that can top 90 percent.

The nation’s most influential pediatrician’s group has endorsed gay marriage, saying a stable relationship between parents regardless of sexual orientation contributes to a child’s health and well-being.